Chemistry 11-10-17 Oxidation Numbers

CHEMISTRY: One man’s rust is another student’s lesson in chemistry! Great job today with oxidation numbers. Now it’s time to go and practice applying them! Need help? Decide on a time for the help session and let me know! πŸ™‚

How did you do on the mock pre-test? Are you ready for the REAL pre-test TUESDAY? For the pre-test you need to have memorized (and be able to use!!): polyatomic ions, monatomic ions (but you can get these off the periodic table), acids, prefixes, the chemical names and formulas of common substances, and how to apply the oxidation rules to write and name chemical formulas.

That’s a lot, but you can do it! And make double dog sure you are working hard at memorizing it all now!!


flickr photo by scottwillis

PHYSICS 11-10-17 Forces with Pulleys and Friction

PHYSICS: Here’s a different take on forces – an application of horizontal forces, vertical forces, friction, all at once! Wow! Great job on solving the problem – can you now go see if you can solve it by yourself?

Thanks, Matthew, for the visual of almost weightlessness! πŸ™‚